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Unraid MCP

Unraid MCP

by lemanjo
OverviewSchemaSourceRelated ServersDiscussionsAdmin
TypeScript
Hybrid

Get Unraid array status

unraid_get_array
Read-onlyIdempotent

Retrieve Unraid array state, capacity, and parity status along with boot, parity, data, and cache disk details to monitor storage health.

Instructions

Get array state, capacity, parity status, and boot, parity, data, and cache disks.

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "unraid_get_array"
  }
}

Input Schema

NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.0.1

TDQS

A3.7/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare readOnlyHint, idempotentHint, and destructiveHint, covering the safety profile. The description adds the scope of returned data (array state, parity, disks), which is useful but not rich behavioral context. No side effects, permissions, or response format details are provided, but for a read-only getter this is acceptable.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single sentence that front-loads the core action ('Get array state') and lists the key data categories compactly. Every word earns its place with no redundancy or filler.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

With no parameters, no output schema, and read-only annotations, the description provides enough high-level information about what is returned (array state, capacity, parity, disks) to determine relevance. It could be more detailed about the structure of each disk entry, but for a simple getter this is reasonably complete.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The tool has zero parameters and an empty schema, so there is nothing to explain. The baseline of 4 applies because no parameter documentation is needed; the description doesn't need to compensate for any schema gaps.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool gets array state, capacity, parity status, and the boot/parity/data/cache disks, using the verb 'Get' with a specific resource. However, it does not explicitly differentiate from the sibling unraid_v4371_query_array, which likely covers similar array data, so it is clear but lacks sibling differentiation.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies usage when array status information is needed, but it provides no explicit guidance on when to use this tool instead of alternatives like unraid_list_disks or unraid_v4371_query_array. There are no stated exclusions or alternative tool names, so usage context is only implied.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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